Results 21 to 30 of about 54,651 (307)

Scaling relationships and vessel packing in petioles [PDF]

open access: yesAmerican Journal of Botany, 2018
Premise of the StudyWhile tradeoffs among mechanical and conductive functions have been well investigated in woody stems, these tradeoffs are relatively unexplored in petioles, the structural link between stems and laminas. We investigated size‐independent scaling relationships between cross‐sectional areas of structural and vascular tissues ...
Dustin M, Ray, Cynthia S, Jones
openaire   +2 more sources

Identification and Quantification of Naphthoquinones and Other Phenolic Compounds in Leaves, Petioles, Bark, Roots, and Buds of Juglans regia L., Using HPLC-MS/MS

open access: yesHorticulturae, 2021
The present study was designed to identify and quantify the major phenolic compounds in different Juglans regia L. (common walnut) tissues (leaves, petioles, bark, roots, buds), to define the compositions and contents of phenolic compounds between these ...
Aljaz Medic   +3 more
doaj   +1 more source

Anatomical study of the leaves and petioles of scab resistant and susceptible apple cultivars

open access: yesInternational Journal of Horticultural Science, 2005
Anatomic studies have been performed on the leaf blade, petiole and annual shoot on six apple cultivars by means of scanning electron as well as light microscope.
M. Tóth, P. Gracza
doaj   +1 more source

Twist-to-Bend Ratios and Safety Factors of Petioles Having Various Geometries, Sizes and Shapes

open access: yesFrontiers in Plant Science, 2021
From a mechanical viewpoint, petioles of foliage leaves are subject to contradictory mechanical requirements. High flexural rigidity guarantees support of the lamina and low torsional rigidity ensures streamlining of the leaves in wind.
Max Langer   +9 more
doaj   +1 more source

Anatomia comparada do pulvino, pecíolo e raque de Pterodon pubescens Benth. (Fabaceae - Faboideae) Comparative anatomy of pulvinus, petiole and rachis of Pterodon pubescens Benth. (Fabaceae - Faboideae)

open access: yesActa Botânica Brasílica, 2004
Em Pterodon pubescens, os pulvinos primário e secundário, órgãos responsáveis pelos movimentos foliares, apresentam peculiaridades estruturais em relação ao pecíolo e raque.
Tatiane Maria Rodrigues   +1 more
doaj   +1 more source

Evaluation of bioactive components and antioxidant capacity of four celery (Apium graveolens L.) leaves and petioles

open access: yesInternational Journal of Food Properties, 2020
The natural bioactive components and antioxidant capacity of leaves and petioles from four celery cultivars (“Benqin”, “Western”, “Baoqin”, and “Majiagou”) were compared and correlated through a nontargeted metabolomics analysis and partial least squares
De-Kun Liu   +6 more
doaj   +1 more source

Effect of Benzyl Adenine Concentration on Callus Induction of Geranium Plants (Pelargonium graveolens L'Her) from Petiole and Leaf Explants

open access: yesJournal of Experimental Life Science, 2020
Geranium plant (Pelargonium graveolens L'Her) is one of the geranium oil producing plants that has many benefits. Callus culture is a technique that can be used to plant multiplication and increase production of secondary metabolites.
Moch Faizul Huda   +2 more
doaj   +1 more source

Petiole-Lamina Transition Zone: A Functionally Crucial but Often Overlooked Leaf Trait

open access: yesPlants, 2021
Although both the petiole and lamina of foliage leaves have been thoroughly studied, the transition zone between them has often been overlooked. We aimed to identify objectively measurable morphological and anatomical criteria for a generally valid ...
Max Langer, Thomas Speck, Olga Speck
doaj   +1 more source

Ichneumonid wasps from Madagascar. VI. The genus Pristomerus (Hymenoptera: Ichneumonidae: Cremastinae) [PDF]

open access: yes, 2013
Pristomerus species of Madagascar are revised. We report 15 species, of which 12 are newly described: P. guinness sp. nov., P. hansoni sp. nov., P. kelikely sp. nov., P. keyka sp. nov., P. moramora sp. nov., P. melissa sp. nov., P. patator sp.
Rousse, Pascal   +2 more
core   +3 more sources

Polarity of Thiamine Movement through Tomato Petioles [PDF]

open access: yesPlant Physiology, 1974
Thiamine-(14)C moved through petiolar sections of Lycopersicon esculentum Mill. var. Michigan State Forcing with striking similarity in kinetics to auxins and gibberellic acid moving through similar sections of other green plants. Thiamine moved with strong basipetal polarity, at a velocity of 3 to 5 mm per hour, and emerged unchanged into the basal ...
S P, Kruszewski, W P, Jacobs
openaire   +2 more sources

Home - About - Disclaimer - Privacy